GB1376560A - Preparation of beta-copper phthalocyanine without milling - Google Patents

Preparation of beta-copper phthalocyanine without milling

Info

Publication number
GB1376560A
GB1376560A GB3895273A GB3895273A GB1376560A GB 1376560 A GB1376560 A GB 1376560A GB 3895273 A GB3895273 A GB 3895273A GB 3895273 A GB3895273 A GB 3895273A GB 1376560 A GB1376560 A GB 1376560A
Authority
GB
United Kingdom
Prior art keywords
copper phthalocyanine
milling
drowning
aug
slurry
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3895273A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1376560A publication Critical patent/GB1376560A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0025—Crystal modifications; Special X-ray patterns
    • C09B67/0026—Crystal modifications; Special X-ray patterns of phthalocyanine pigments
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0032—Treatment of phthalocyanine pigments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

1376560 Preparation of #-copper phthalocyanine without milling E I DU PONT DE NEMOURS & CO 17 Aug 1973 [18 Aug 1972] 38952/73 Heading C4P A process is described for producing #-copper phthalocyanine pigment which comprises preparing a solution of crude copper phthalocyanine in cone. sulphuric acid of at least 70 weight per cent strength, drowning the sulphuric acid solution in water or dilute acid flowing at a velocity in excess of the initial velocity to provide high turbulence and produce a slurry of copper phthalocyanine crystals, and thereafter recovering copper phthalocyanine as a pigment, wherein intermediate to the drowning and recovery steps the slurry is maintained under agitation in the presence of: (a) a waterimmiscible halogenated organic liquid; and (b) (3-copper phthalocyanine as seed. Suitable solvents (a) are orthodichlorobenzene, trichloroethylene, chloroform, perchloroethylene, carbon tetrachloride and trichloromethane. The use of a surfactant assists the phase-conversion. The particle size of the #- product is such that the specific surface area is at least about 40 m.<SP>2</SP>/gram.
GB3895273A 1972-08-18 1973-08-17 Preparation of beta-copper phthalocyanine without milling Expired GB1376560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28197072A 1972-08-18 1972-08-18

Publications (1)

Publication Number Publication Date
GB1376560A true GB1376560A (en) 1974-12-04

Family

ID=23079538

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3895273A Expired GB1376560A (en) 1972-08-18 1973-08-17 Preparation of beta-copper phthalocyanine without milling

Country Status (5)

Country Link
JP (1) JPS4953918A (en)
BR (1) BR7306363D0 (en)
CA (1) CA1005441A (en)
DE (1) DE2341795A1 (en)
GB (1) GB1376560A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009602A1 (en) * 1980-03-13 1981-10-01 Basf Ag, 6700 Ludwigshafen METHOD FOR SHAPING ORGANIC PIGMENTS
US4451654A (en) * 1981-03-05 1984-05-29 Basf Aktiengesellschaft Conditioning of finely divided crude organic pigments
CN102653679B (en) * 2011-03-04 2014-07-02 北京大学 Y-type titanyl phthalocyanine nano-particles and preparation method and application thereof

Also Published As

Publication number Publication date
JPS4953918A (en) 1974-05-25
CA1005441A (en) 1977-02-15
BR7306363D0 (en) 1974-07-18
DE2341795A1 (en) 1974-02-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee